Over 2.5 sets predictions 17 September 2026

Every best-of-three singles match ranked by the chance that it goes the distance to a third set. Evenly matched players make three-setters; a lopsided pairing usually ends in two.

Chance of a third set, 11 matches

MatchThree sets Two sets
Finished Anna Blinkova – Vendula Valdmannova WTA Sao Paulo, Brazil Women, Singles · final 2–0 50% 50%
Finished Dominika Salkova – Mary Stoiana WTA Sao Paulo, Brazil Women, Singles · final 0–2 50% 50%
Finished Suzan Lamens – Solana Sierra WTA Sao Paulo, Brazil Women, Singles · final 2–0 50% 50%
Finished Eva Lys – Nadia Podoroska WTA Sao Paulo, Brazil Women, Singles · final 0–2 49% 51%
Finished Elina Avanesyan – Alina Charaeva WTA Sao Paulo, Brazil Women, Singles · final 0–2 49% 51%
Finished Marta Kostyuk – Liudmila Samsonova Guadalajara · final 1–2 48% 52%
Finished Cristina Bucsa – Sara Bejlek Guadalajara · final 2–0 48% 52%
Finished Jazmin Ortenzi – Paula Badosa WTA Sao Paulo, Brazil Women, Singles · final 1–2 46% 54%
Finished Kayla Day – Liudmila Samsonova Guadalajara · final 1–2 45% 55%
Finished Nauhany Vitoria Leme Da Silva – Kaitlin Quevedo WTA Sao Paulo, Brazil Women, Singles · final 0–2 41% 59%
Finished Magdalena Frech – Iva Jović Guadalajara · final 0–2 36% 64%
How the three-set chance is worked out
It follows directly from the win probability: the closer a match is to 50/50, the more likely each set is to be shared and the match to need a third. Grand Slam men's matches (best of five) are left out here.